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Proof step 1 from proof data-ubifs-cons (conclusion)

⊦ datakey(ino, n) ∈ ri ∧ ri[datakey(ino, n)] ∈ fs ∧ ubifs-cons(fs, ri, ro, fi, fo, log) → fs[ri[datakey(ino, n)]].data?

System applied rule normalize

And obtained the following new goals

Rule argument

Additional information